METHOD AND APPARATUS FOR CANCELLING RIPPLE CURRENT IN A LAMP

Details for Australian Patent Application No. 2002235242 (hide)

Owner INFOCUS SYSTEMS, INC.

Inventors PRUETT, Henry, Frazier

Pub. Number AU-A-2002235242

PCT Pub. Number WO2002/052706

Priority 09/750,388 27.12.00 US

Filing date 20 December 2001

Wipo publication date 8 July 2002

International Classifications

H02M 003/158 Conversion of dc power input into dc power output

H05B 041/26 Circuit arrangements or apparatus for igniting or operating discharge lamps - in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc

Event Publications

23 January 2003 Application Open to Public Inspection

  Published as AU-A-2002235242

5 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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